Stanley 8-11-800 Carbide Knife Blades (Pack of 50) These Stanley knife blades have carbide edges, which allow the rest of the blade to remain flexible.They are long lasting and are very sharp. Features: Lasts up to 5 times longer than conventional blades Tungsten Carbide powder deposited through a high powered laser to the blade edge Having only a Carbide edge allows rest of blade to remain flexible The sharper, more durable cutting edge means less time spent changing blades Improved durability and wear Specification: Height: 19mm Length: 62mm Thickness: 0.6mm